package com.taowan.xunbaozl.morning_speak.design_pattern.day17;

/**
 * com.taowan.xunbaozl.morning_speak.design_pattern.day17.app
 * Created by diql on 2016/3/14.
 */
public interface Visitor {
    void visit(Node1 n1);
    void visit(Node2 n2);
}
